The artillery barrage just before Pickett's charge.
The loudest sound that we can hear is about 130 decibels.
In my opinion it is the drums that have the loudest raw sound, but if you connect your guitar to an amplifier then the sound will have increased.
The loudest sound ever recorded are rock concert speakers.
At a very close distance to the spider you hear the loudest sound.
I believe the Saturn V moon rocket was the loudest man made sound.
lub
The loudest noise or sound is The Bloop because in 1997, U.S. NOAA heard a sound that is never been heard of that is also the loudest sound ever. The sound can cause from more than 5,000 km away from it's source. If it is an animal, it is louder and bigger than the loudest animal and the biggest animal in Earth.
194 dB (decibels) is the loudest sound on Earth ever. Some people say that the eruption of Krakatoa in 1883 was the loudest sound ever, being heard at 5,000 kilometers away! That eruption was around 180 dB!
If you mean loudest possible, that would be 194dB. If you mean loudest before the tissue of the human ear dies instantly, that would be 180dB.
The Destruction of a a star.
There is no upper limit.
Usually, it's not a sound we can comprehend with our human ears.